Warm-water-supply plant



July 14, 1925. r 1,545,938

P. 'r BREN WARM WATER SUPPLY PLANT Filed Feb. 9, 1925 Patented 14, 1925.

UNITED STATES 1,545,938 PATENT OFFICE.

PEER TKULESEN BBEN, '1 COPENHAGEN, DENMARK.

wm-wa'rna-surrnr sham.

Application filed Februaryt, 1825. Serial No. 8,042.

To all whom it may comm:

Be it known that I, 13mm: Trmmsnn Brian, engineer, a subject of the Kingof Denmark, residing-at 28 Svinget, Copenh en, Denmark, have inventedcertain new an useful Im rovements in or Relating to Warm-WaterupplyPlants, of which the following is a specification.

' will not only be disagreeable for the consumers but will also in anuneconomical manner influence the furnace or boiler causing a greateruse of fuel, and necessitating more attention of the workman.

For remedying this drawback it has been proposed to introduce cold waterin the service pipe through a thermostatically controlled valve openingitself as soon as the temperature of the water has risen to a certaindegree.

Consequently the supply of water drawn, will not as a whole be obtainedfrom the original contents of the heating vessel but will consist partlyof cold water led in through the thermostatic valve.

My invention relates to a thermostatically controlled warm water supplyplant of this kind and has for its object to secure a regular mixing ofthe cold and warm water and further secure the calcareous depositsalways formed where the cold water enters the warm water, to bedeposited far from the thermostatic valve so as not to injure thefunction of it and to be easily removed.

According to the invention there is 'insorted between the service pipeand the heat ing vessel a container dlvided in two compartments orchambers, the cold waterpipe and the ipe from the heating vessel beingconnected with the'one of them, or the mix ing chamber, and the servicepipe with the other or the supplychamber. In the mixing chamber the coldwater" and the warm water are brought to flow together so as to becomeevenl mixed before entering the supply cham er which latter contains theheat influenced or thermostaticmember for actuat ing the valve, thevalve being placed in the cold water tube outside the container or before its connecting point with the mixing chamber.

In order that the invention may be fully understood the same isdiagrammatically shown on the annexed drawing by way of an example.

The heating vessel 1 receives in the usual manner cold water from a coldwater pipe 3 and owing to its connection with a boiler 2 or the likedelivers warm water through a pipe 4. indicates the service pipeprovided with taps not shown on the drawing. Between the pipes 4 and 5 acontainer 6 is inserted, which by a partition 7 is divided into twochambers 6 and 6". The size of the container may for instance be equalto that of a bathing tub or even larger. Generally a capacity from 10 togallons will be sufiicient. In the chamber 6 near its top the warm waterpipe 4 coacts with a cold water pipe 3* in such a manner that the twoflows will be immediatel mixed when passing downwardly in the c amber 6,prior to passing through an aperture 7 in the bottom of the chamber 6,or beneath the partition 7 into the chamber 6".

The construction of the thermostatic valve forms no part of the presentinvention.

1 may use any known construction comprising a thermostatic element orbulb 8 and a valve 9 connected with the feeler by a wire or tubelO ofsuitable length. According to the invention the valve 9 is inserted inthe tube 3 outside the mixing chamber 6, the element 8 being placed inthe supply chamber 6". The thermostatic valve may be adjusted so that itis opened at about 45.

If the water of the heating vessel 1 has a higher temperature than about45, the valve is opened owing to the efiect of the element 8. Hence whentapping, cold water will enter the chamber 6' and mix with the warmwater, thus reestablishing the temperature of 45 at which temperaturethe valve again closes automatically.

When introducing cold water at any point of a warm water conduit thedeposits of the calcareous'matters of the water are according toexperiments limited to this point, while in the other parts of theconduit no sediments or incrustations appear.

Consequently in plants of the present kind, sediments or incrustationswill only appear in the chamber 6 while the service pipe and the partsbelonging to it, will re main clean, in order to enable the chamber 6 tobe cleaned, it may be provided with a door 10, and further the containeror the chamber 6 may be provided with admin cock 1 1.

A by pass 12 enables the container to be wshut out of the conduit whennecessary.

I claim A warm water supply plant with a therber connected to theservice pipe, a warm water supply connected with the mixing chamber, themixing chambei bein provided with a cleaning aperture, and t ermostaticmeans outside the mixing chamber for automatically controlling the coldwater supply according to the temperature of the supply chamber.

In testimony whereof I hereunto afiix my signature. I

PEDER THULESEN BREN.

